Acts 10:44

While Peter yet spake - It in not very likely that the words recorded by St. Luke are all that the apostle spoke on this occasion; but, while he continued to discourse with them on this subject, the Holy Ghost fell on all them that heard the word; and his descent was known by their being enabled to speak with different kinds of tongues. In what manner this gift was bestowed we cannot tell; probably it was in the same way in which it had been given on the day of pentecost; for as they spake with tongues, which was the effect of the descent of the Spirit as flaming tongues on the heads of the disciples on the day of pentecost, it is very likely that the same appearance now took place.

The Holy Ghost fell ... - Endowing them with the power of speaking with other tongues, Acts 10:46. Of this the apostle Peter makes much in his argument in Acts 11:17. By this, God showed that the Gentiles were to be admitted to the same privileges with the Jews, and to the blessings of salvation in the same manner. Compare Acts 2:1-4.

Which heard the word - The Word of God; the message of the gospel.

10:44 The Holy Ghost fell on all that were hearing the word - Thus were they consecrated to God, as the first fruits of the Gentiles.And thus did God give a clear and satisfactory evidence, that he had accepted them as well as the Jews.